app.filter('safeHtml', ['$sce',function ($sce) {
    return function (input) {
        return $sce.trustAsHtml(input);
    }
}]);

app.filter('identify', function () {
    return function(input){
        if (input == 'TeachingAsistant'){
            return '教辅'
        }
        return '';
    }
})